I wonder why OP is not locking this thread when he is getting negative feedback from his own post, and he cannot post proof that his story is true, I don't know his reason why he posted this kind of story but it really backfires maybe his intention is that he just want to be honest and nice by sending that huge amount of Bitcoin which is not true.
Because he's not active anymore, his last active was January 2.
I don't think you'll ever be able to send it back to the same address since everything in bitcoin is now anonymous and it's the only reason why government and police aren't able to find us. I really like your nature instead of grabbing the bitcoins you want to send back to the owner but unfortunately, you can not as you're not aware who's this bitcoin belong to. The only thing you can do is distribute it to the beginners or donate it. Its a big amount and it can help poor
Actually he's looking for the account on primedice, not asking about unknown Bitcoin address. He can tipped on his account, so he will send to correct person except the account got hacked. Well, why you need to distribute the money to the beginners? They wouldn't learn how to accumulate Bitcoin is like money, so he will not be careful with it. He could be scammed or he doesn't know how to use Bitcoin.